<template>
  <div>
    <button @click="isShow = !isShow">显示/隐藏</button>
    <transition name="hello" appear>
      <h1 v-show="isShow">你好啊！！！</h1>
    </transition>
  </div>
</template>

<script>
  export default {
    name: "Test",
    data(){
      return{
        isShow:true
      }
    }
  }
</script>

<style scoped>
  h1{
    background-color:forestgreen;
  }

  .hello-enter-active{
    animation:lntu 0.6s linear;
  }

  .hello-leave-active{
    animation:lntu 0.6s reverse;
  }

  @keyframes lntu {
    from{
      transform:translateX(-100px);
    }
    to{
      transform:translateX(0px);
     }
  }
</style>